Double-roller preliminary crushing and compression feeding device for crusher and feeding method

Abstract

The invention relates to a double-roller preliminary crushing and compression feeding device for a crusher and a feeding method. Double-roller preliminary crushing and compression feeding are adopted, and triangular toothed blocks and horizontal strips are arrayed on a wheel face of a double-roller body. A feeding port is provided with double rollers, the problems of continuous rolling and continuous conveying of materials such as long and high waste steel and the like and preliminary crushing of shell feeding are effectively solved, and various materials such as the waste steel and the like are effectively conveyed into a main crusher. The double rollers are hydraulically driven to be controlled and are different in linear speed, the fronts of the double rollers are high while the backs of the double rollers are low relative to a feeding channel, and the materials such as the long and high waste steel and the like can be fed. The double rollers are mounted on a double-roller moving frame hydraulically driven, two lower sides of the double-roller moving frame are respectively controlled by a group of hydraulic cylinders, and the space between each roller and the feeding channel can be adjusted. The hydraulic cylinders are narrowed to the shortest in normal operation, the moving frame is positioned at the lowest point, and the height of the moving frame can be properly adjusted when large materials need to pass through the moving frame. The hydraulic cylinders can be elongated in maintenance and can be fixed by a fixing pin when reaching the highest point.

Description

technical field [0001] The invention belongs to the technical field of crushers, and in particular relates to a double-roller pre-breaking and compression feeding device and a feeding method of a crusher. Background technique [0002] At present, most of the crusher feeding methods for materials such as scrap iron and steel (including scrap car shells) use a set of upper and lower rollers to feed, and the rollers use smooth rollers or some horizontal bars on the rollers; the above feeding structure is suitable for scrap The feeding of long and tall materials such as iron and steel (including waste car shells) is not very effective. When feeding materials such as scrap steel (including waste car shells) with smooth rollers or rollers with horizontal strips, they tend to slip on the surface of longer materials , For higher materials, the upper and lower rollers are often easily stuck, resulting in ineffective feeding. Contents of the invention [0003] The present invention...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the feeding method of the current crusher for materials such as scrap iron and steel (including waste car shells), mostly using a set of upper and lower counter-rollers for feeding, and the counter-rollers adopt smooth rollers or rollers with some horizontal bars; the above-mentioned feeding structure, It is not very effective for feeding long and high materials such as scrap iron and steel (including scrap car shells). The upper and lower rollers tend to get stuck due to slippage on the upper side, which leads to problems such as inability to effectively feed the material. A double-roller secondary pre-breaking and compression feeding device is proposed.

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